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28 To: Question: We manufacture RTJ gaskets and have been asked to supply octagonal gaskets in SR shape. We have manufactured SRX and SBX gaskets in the past but have never manufactured SR gaskets. Are you aware of SR gaskets and where we can learn about them? Answer: "SR" refers to a specific ring groove type and
dimension set, not a ring gasket. SR ring grooves accept standard
RX or
SRX gaskets. These ring grooves only appear in API Spec 16A, where you
can find their dimensions with tolerance. The following table lists the
API Spec 16A Clamp Hub connectors with SR ring
grooves (2005).
To positively identify any connector of this type encountered in the field, you may wish to record the dimensions on the Worksheet you can find at http://www.woodcousa.com/catalogs/clamp14.htm, and compare the dimensions recorded to those on the Slide Rule at http://www.woodcousa.com/hubs/hubslide.htm. Some persons refer to SR ring grooves as "Deep Ring Grooves." These ring groove dimensions allow the connector faces to meet when made-up using an RX or SRX ring gasket. At WOODCO USA we have never cut an SR ring groove in a flange, but we have heard of this. Any flange that has this ring groove must also have a raised face similar to a BX flange in order to function reliably. Always use SRX gaskets when making-up these connections underwater.
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Q & A
21 Ring Gasket Evaluation
Information above, and in other
parts of this Web Site, may help persons who really seek to know. If you
have a question, and you think WOODCO USA may have the capacity to answer
it, please use our
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chance to help. WOODCO USA provides Web Site Tools for identification, estimating, and reference only. Do not use this information for manufacturing or inspection. Users of these tools should not use them as a substitute for professional engineering advice. Anyone making use of the information presented does so at his own risk and assumes any and all liability resulting from such use. FOR FURTHER INFORMATION, OR TO LEARN MORE ABOUT WOODCO USA PRODUCTS AND SERVICES, CONTACT: WOODCO USA |
